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KMID : 1024520150240091123
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Journal of the Environmental Sciences
2015 Volume.24 No. 9 p.1123 ~ p.1129
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Evaluation of Adsorption Characteristics of Radioactive Iodine (I-131) for Various Materials of Granular Activated Carbon (GAC)
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Park Hong-Gi
Son Hee-Jong
Yeom Hoon-Sik
Kim Young-Jin
Choi Jin-Taek
Ryou Dong-Choon
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Abstract
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This research was performed by means of several different virgin granular activated carbons (GAC) made of each coal,
coconut and wood, and the GACs were investigated for an adsorption performance of iodine-131 in a continuous adsorption column. Breakthrough behavior was investigated that the breakthrough points of the virgin two coals-, coconut- and wood-based GACs were observed as bed volume (BV) 7080, BV 5640, BV 5064 and BV 3192, respectively. The experimental results of adsorption capacity (X/M) for iodine-127 showed that two coal- based GACs were highest (208.6 and 139.1 μg/g), the coconut-based GAC was intermediate (86.5 μg/g) and the wood-based GAC was lowest (54.5 μg/g). The X/M of the coal-based GACs was 2∼4 times higher than the X/M of the coconut-based and wood-based GACs.
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KEYWORD
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Iodine-131, Radionuclide, Granular activated carbon (GAC), Adsorption
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